@rhettinger @tinchester I definitely see now that f-strings should have a place in logging. 
But do you agree that f-strings don't mix 100% safely with the current logger API?
What are your thoughts on a safer set of logger functions (see my comments above, https://bugs.python.org/issue46200#msg409505)

Just throwing an additional alternative out there: instead of the @overload approach, one could have 2 logger function families:

debugs(s: str)                          # s-prefix indicates simply logging a string (no formatting done by logger!)
debugf(s: LiteralStr, *args, **kwargs)  # f prefix indicates logger does the formatting. (no formatting done by user!)

@vinay.sajip what are your thoughts on the discussion above?